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While it is true that a .270 Winchester case can be formed from a .30-06 Springfield case, the case length of a .30-06 is 63.3 millimetres (2.494 in) while the case length of a .270 is 64.5 millimetres (2.540 in). However, the brass of a .30-06 case will often stretch, or lengthen, past the dimension of the .30-06 case when necked down to form ...
270 Winchester necked down to a .243 bullet with the angle increased to 35 degrees - The 270 Winchester is a standardized cartridge of the same design as the 30-06 except the case is 1.2mm longer and necked down to the .270 caliber.
In 1925, Winchester introduced the .270 Winchester, previously known as the .270 WCF, based on the 30-06 Springfield case necked down to .277" (6.8 mm). Although the .270 Winchester was not an instant success, within a few decades it became one of the most popular big game hunting cartridges for mid sized game worldwide, because of its relatively mild recoil and flat trajectory within ...
Since its dimensions are taken from the 30-06 cartridge from the 1906 US Army cartridge, the lower half of these case dimensions have been used for designing the .243 Winchester, 25-06, .270 Winchester, .280 Remington, 7mm-08, .308, .30-06, .35 Whelen, and others.
The .30-06 Springfield cartridge case can hold 68.2 grains and has a volume of 4.42 millilitres (0.270 in 3). The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions. [citation needed].30-06 Springfield maximum C.I.P. cartridge dimensions.
While it is true that a .280 Remington case can be formed from a .30-06 Springfield case, the case length of a .30-06 is 63.3 millimetres (2.494 in) while the case length of a .280 is 64.5 millimetres (2.540 in), the same as a .30-03 Springfield. However, resized cases often stretch making up the difference in length and "The slight difference ...
.270 Winchester.280 Remington.30-06 Springfield.300 H&H Magnum; 722 Calibers:.222 Remington ... 30-06 1961 270 Win 280 Rem 300 Mag 30-06 Year Model 722 1948
The cartridge was intended to compete with the .30-06 and the .270 Winchester. Although the .280 Remington is considered to be a very balanced cartridge combining the best attributes of both cartridges due to the high ballistic coefficient and sectional density characteristic of 7mm calibers, it did not reach the popularity achieved by the .30 ...